CN102151879A

CN102151879A - Movable boring tool rest

Info

Publication number: CN102151879A
Application number: CN 201110043247
Authority: CN
Inventors: 钱雪松; 卞新高; 朱灯林; 朱天宇; 朱炳麒; 陆其清
Original assignee: Changzhou Campus of Hohai University
Current assignee: Changzhou Campus of Hohai University
Priority date: 2011-02-23
Filing date: 2011-02-23
Publication date: 2011-08-17
Anticipated expiration: 2031-02-23
Also published as: CN102151879B

Abstract

The invention discloses a novel movable boring tool rest, comprising a hydraulic oil cylinder component and a tool rest component. The movable boring tool rest is characterized in that the tool rest component comprises a tool rest seat; the center of the tool rest seat is provided with a square through hole; the tool rest is arranged in the square through hole at the center of the tool rest seat; the upper part of the tool rest is provided with a U-shaped groove; the boring cutter is fixedly arranged in the U-shaped groove at the upper part of the tool rest; the center of the tool rest is provided with a round hole; a return spring and a spring seat are arranged in the round hole at the center of the tool rest; a front end cover is arranged at the right side of the tool rest and is fixedly connected with the tool rest seat; the hydraulic oil cylinder component comprises a plunger connected with the tool rest; the plunger is arranged in an oil cylinder body; and the left end of the oil cylinder body is provided with an oil port D. According to the invention, when faults are found in the boring process of a workpiece and after the boring of the workpiece is finished, the boring tool rest, together with the boring tool, can realize the tool withdrawing action, so that the boring tool does not influence a processed pipeline surface when a boring rod withdraws from the bored hole of the workpiece.

Description

Removable boring cutter knife rest

Technical field

The present invention relates to a kind of boring cutter knife rest, especially a kind of movably boring cutter knife rest belongs to field of mechanical technique.

Background technology

At present, when machining boring system deep hole, normally used is common fixedly boring tool holder, and fixedly the characteristics of boring tool holder are no matter workpiece begins in bore hole, the workpiece bore process and after bore hole finished, boring tool holder was all fixed, can't realize the tool backlash movement of boring cutter, so, after workpiece finds that in the bore hole process fault and workpiece bore finish, when boring bar has withdrawed from the hole of boring system from workpiece, boring cutter all can form cut on the finished surface, influences the crudy of workpiece.In fields such as electric power, widely used pipeline, wherein some occasion has certain processing request to inner-walls of duct, need to adopt deep hole boring processing, in boring system process, use fixedly boring tool holder, inevitably produce cut, influence the quality of the bearing capacity and the product of pipeline at finished inner-walls of duct, particularly particularly serious to the influence of bearing pipe and sheet-metal duct.So, have only at present by increasing the bearing capacity that pipeline wall thickness guarantees pipeline, will improve the manufacturing and the processing cost of pipeline so greatly.

Summary of the invention

Technical problem to be solved by this invention provides a kind of boring cutter knife rest, when workpiece in process, boring tool holder is in a fixed position, function is as fixing boring tool holder; After workpiece found that in the bore hole process fault and workpiece bore finish, boring tool holder can be realized tool backlash movement together with boring cutter, guaranteed boring bar when workpiece has withdrawed from the hole of boring system, and boring cutter can not exert an influence to finished pipe surface.

For solving the problems of the technologies described above, the invention provides a kind of novel removable boring cutter knife rest, comprise hydraulic jack assembly and cutter holder assembly, it is characterized in that: described cutter holder assembly comprises carriage saddle, the center of carriage saddle offers square through hole, knife rest is installed in the square through hole at carriage saddle center, described knife rest top offers " U " type groove, boring cutter is fixedly installed in the type groove of knife rest top " U ", the knife rest center offers circular port, back-moving spring and spring base are installed in the knife rest central circular hole, and drive end bearing bracket is installed on the carriage saddle right side and is fastenedly connected with carriage saddle; Described hydraulic jack assembly comprises the plunger that links to each other with knife rest, and plunger is installed in the cylinder body, and described cylinder body left end offers logical hydraulic fluid port D.

Aforesaid removable boring cutter knife rest is characterized in that: be provided with seal between plunger and the cylinder body.

Aforesaid removable boring cutter knife rest, it is characterized in that: drive end bearing bracket is fastenedly connected by second screw and carriage saddle.

Aforesaid removable boring cutter knife rest, it is characterized in that: drive end bearing bracket is equipped with the preset screw.

Aforesaid removable boring cutter knife rest is characterized in that: described cylinder body and knife rest rear end cap are one.

Aforesaid removable boring cutter knife rest is characterized in that: the hydraulic jack assembly is fixedly mounted on the left side of carriage saddle by the 3rd screw.

The beneficial effect that the present invention reached: the present invention passes through said structure, after workpiece finds that in the bore hole process fault and workpiece bore finish, boring tool holder can be realized tool backlash movement together with boring cutter, guarantee boring bar when workpiece has withdrawed from the hole of boring system, boring cutter can not exert an influence to finished pipe surface.

Description of drawings

The embodiment that provides below in conjunction with accompanying drawing does explanation in further detail to the present invention.

Fig. 1 is a structure cutaway view of the present invention;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the right view of Fig. 1;

Fig. 5 is the A-A cutaway view of Fig. 1;

Fig. 6 is a fundamental diagram of the present invention.

The name of each parts is called among the figure:

1-boring cutter 2 first screw 3-spring base 4-back-moving spring 5-regulate the preset screw 6-second screw 7-drive end bearing bracket 8-knife rest 9-carriage saddle 10-plunger 11-seal 12-cylinder body 13-the 3rd screw.

The specific embodiment

Shown in Fig. 1,2,3,4,5,6, a kind of novel removable knife rest comprises hydraulic jack assembly and cutter holder assembly composition.Wherein the hydraulic jack assembly comprises cylinder body 12(and knife rest rear end cap one), plunger 10, seal 11 is installed on the plunger 10, the plunger 10 that seal 11 is installed is contained in cylinder body 12 inside, the left end of cylinder body 12 offers logical hydraulic fluid port D; Cutter holder assembly comprises boring cutter 1, knife rest 8, carriage saddle 9, drive end bearing bracket 7, knife rest 8 tops offer " U " type groove, boring cutter 1 is installed in " U " type groove on knife rest 8 tops, and be fastenedly connected on knife rest 8 by first screw 2, knife rest 8 centers offer circular port, back-moving spring 4 and spring base 3 are installed in the knife rest 8 central circular holes, the center of carriage saddle 9 offers square through hole, knife rest 8 is installed in the square through hole at carriage saddle 9 centers, precision-fit, knife rest 8 can be in the square through hole at carriage saddle 9 centers move left and right, drive end bearing bracket 7 is installed on carriage saddle 9 right sides, and be fastenedly connected by second screw 6 and carriage saddle 9, drive end bearing bracket 7 is equipped with preset screw 5, can control the extreme position that knife rest 8 moves to right by regulating preset screw 5, the extreme position that moves to right of boring cutter 1; Plunger 10 manufactures one with knife rest 8, and the hydraulic jack assembly is installed in carriage saddle 9 left sides by the 3rd screw 13, and is fastenedly connected with carriage saddle 9 by the 3rd screw 13.

As Fig. 1,2,3,4, shown in 5, because the hydraulic jack assembly is installed in carriage saddle 9 left sides by the 3rd screw 13, and be fastenedly connected by the 3rd screw 13 and carriage saddle 9, the logical hydraulic fluid port D that offers by the left end of cylinder body 12 when high-voltage oil liquid enters oil cylinder inside, oil pressure acts on the left end of plunger 10, to left plunger 10 generations thrust to the right, simultaneously, because plunger 10 manufactures one with knife rest 8, this thrust same purpose is on knife rest 8, it will overcome the pre-pressing force of the back-moving spring 4 that is installed on knife rest 8 centers, promoting plunger 10 moves right with knife rest 8, tightly be pressed on the drive end bearing bracket 7, and boring cutter 1 is installed in " U " type groove on knife rest 8 tops, and be fastenedly connected on knife rest 8 by first screw 2, so, at this moment, boring cutter 1 is in low order end, as long as oil pressure acts on thrust on plunger 10 and the knife rest 8 greater than the pre-pressing force and the boring cutter horizontal cutting power sum of back-moving spring 4, boring cutter 1 just can not produce the withdrawing phenomenon in the bore hole working angles, the just suitable and immovable support of the function of the follow rest of this moment.Before processing, regulate the preset screw 5 that is installed in drive end bearing bracket 7, can realize the preconditioning of boring cutter 1 position; When stopping to add man-hour, the logical hydraulic fluid port D that offers by cylinder body 12 left ends discharges the high-voltage oil liquid of oil cylinder inside, plunger 10 will be under the effect of back-moving spring 4 pre-pressing force with knife rest 8, to left movement, the fluid of oil cylinder inside is discharged by logical hydraulic fluid port D, is fastenedly connected on knife rest 8 because boring cutter 1 is installed in " U " type groove on knife rest 8 tops and by first screw 2, and boring cutter 1 will be under the effect of back-moving spring 4 pre-pressing force, along with knife rest 8 to left movement, realize tool backlash movement.After boring cutter 1 is realized tool backlash movement, again boring bar is withdrawed from the hole of boring system from workpiece, boring cutter can not exert an influence to finished pipe surface, guarantees the pipeline crudy.

Below disclose the present invention with preferred embodiment, so it is not in order to restriction the present invention, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within protection scope of the present invention.

Claims

1. removable boring cutter knife rest, comprise hydraulic jack assembly and cutter holder assembly, it is characterized in that: described cutter holder assembly comprises carriage saddle (9), the center of carriage saddle (9) offers square through hole, knife rest (8) is installed in the square through hole at carriage saddle (9) center, described knife rest (8) top offers " U " type groove, boring cutter (1) is fixedly installed in " U " type groove on knife rest (8) top, knife rest (8) inside offers circular port, back-moving spring (4) and spring base (3) are installed in the inner circular port of knife rest (8), and drive end bearing bracket (7) is installed on carriage saddle (9) right side and is fastenedly connected with carriage saddle (9); Described hydraulic jack assembly comprises the plunger (10) that links to each other with knife rest (8), and plunger (10) is installed in the cylinder body (12), and described cylinder body (12) left end offers logical hydraulic fluid port D.

2. removable boring cutter knife rest according to claim 1 is characterized in that: be provided with seal (11) between plunger (10) and the cylinder body (12).

3. removable boring cutter knife rest according to claim 1 is characterized in that: drive end bearing bracket (7) is fastenedly connected by second screw (6) and carriage saddle (9).

4. removable boring cutter knife rest according to claim 1 is characterized in that: drive end bearing bracket (7) is equipped with preset screw (5).

5. removable boring cutter knife rest according to claim 1 is characterized in that: described cylinder body (12) is an one with the knife rest rear end cap.

6. removable boring cutter knife rest according to claim 1 is characterized in that: the hydraulic jack assembly is fixedly mounted on the left side of carriage saddle (9) by the 3rd screw (13).